551610651 has 4 divisors (see below), whose sum is σ = 735480872. Its totient is φ = 367740432.

The previous prime is 551610601. The next prime is 551610667. The reversal of 551610651 is 156016155.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 551610651 - 2⁹ = 551610139 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (551610601) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 91935106 + ... + 91935111.

It is an arithmetic number, because the mean of its divisors is an integer number (183870218).

Almost surely, 2^551610651 is an apocalyptic number.

551610651 is a deficient number, since it is larger than the sum of its proper divisors (183870221).

551610651 is a wasteful number, since it uses less digits than its factorization.

551610651 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 183870220.

The product of its (nonzero) digits is 4500, while the sum is 30.

The square root of 551610651 is about 23486.3928903525. The cubic root of 551610651 is about 820.1202733555.

The spelling of 551610651 in words is "five hundred fifty-one million, six hundred ten thousand, six hundred fifty-one".